USD1 recently surpassed $5B in market cap, making it one of the top five stablecoins by market cap. It's only about $1B behind USDe. (You could say it flipped DAI based on the image, but since USDS is a rebranding of DAI, this is an exaggeration.) The biggest impact, of course, was the recent Binance USD1 campaign. The market cap increased from around $3B before the campaign to over $2B after the event. With the market completely dry, stablecoin farming clearly saw strong demand.